iterationT Shader
SEUS flagship level shader!
How to use
The starting header is
You can drag it from the top right corner.
Optifine / Iris shader support available!
Optimal settings (Optifine only)
Settings are required in the right-hand column of the Lighting and Shadows selection screen.
Anti-Aliasing: Off
Shadow quality: 1x to 2x
Rendering Quality: Doesn't matter
Classic Lighting: Default
Incompatible devices
MAC OS
Intel ARC series graphics card, Intel UHD700 series or earlier integrated graphics card
NVIDIA Geforce graphics card before GTX600
AMD/ATI Radeon graphics cards prior to HD7000
Graphics card or driver released before 2012
Update details
1. Major update contents
1. Standby system
1) The new appearance of the sky brought by the new model
2) Full planetary atmosphere simulation
3) Rendering extra-atmospheric objects based on physical models
4) Volume Cloud Adjustment
5) Add ground scattering suitable for atmospheric model
2. Global illumination system
1) Detail and color performance of global illumination has been improved.
2) Remove the artifacts at the edge of the square.
3) Improved transition effects when out of bounds
3. Underwater rendering
1) Water mist control
2) Rebuild the underwater volume light
3) Adjusting the shape of the caustic lines
4. Volumetric fog
1) A softer mist form
2) Light weight optimization
3) Added refraction rendering option
4) Dramatically reduces the visibility of noise patterns.
5. Final dimensions
1) New celestial body - black hole
2) Add star ring projection, dynamic starry sky and gravity lens
3) Adjust exposure performance and optimize shadow quality
6. Lower dimension
1) Strengthening flood fog and reducing jitter
7. Material system
1) New parallax algorithm
2) Added anisotropic filtering support
3) Added PBR self-lighting support
4) Optimization of moisturizing effect
8. Weather system
1) New raindrop rendering, new snowflake judgment
2) Adapt to rainy weather effects in new atmospheric models
9. Post-processing
1) Add lens glare
2) Rewrite the floodlight algorithm
3) Adjust exposure logic
10. Caving mode
1) Activating it will greatly improve your visibility in the dark of the cave .
2. Minor changes
Version compatibility updated to 1.19.
Added multiple custom light adjustments
Adjust azure level curve
Adjust the blocking light level curve
Fine-tune the brightness of various light sources
Added nether environment lighting and fog settings.
Adjust the default blur level of the shadow and add related customization options.
Improved penumbra quality and added penumbra-related customization options.
Adjusted plant underground spawning effect
Added automatic texture pack resolution determination
Added mod block compatibility option.
Fine-tune the wave shape and add relevant customization options.
Adjust block highlight intensity
After adding a translucent rectangle, I added water fog rendering.
Added various customization options for rainy days
Added underwater volumetric fog switch
Added horizon switches to sky and reflection skyboxes.
Optimized metallic sky reflection masking transition
To make it as close to the original as possible, we added fine snow fog and magma fog.
Adjust the blindness effect as close to the original as possible.
The distance calculation method for most fog effects has changed.
Adjust night vision effect
Optimizing Depth-of-Field Sampling Methods
Added auto weighting mode for exposure brightness weighting
Adjust default automatic exposure mode for each dimension
Added shady option.
Adjusted dark light fade effect and added related customization options
Add startup title
Added exclusive rendering effects to the End Portal.
3. Bugs fixed
Flag translucency effect is lost.
The translucent effect of portable flags is lost.
Snowflakes are not rendering
Lightning not rendering
Magic lighting effect rendering error
There are no translucent blocks.
CTM's overlay feature causes incorrect translucent rendering
High-gloss material blocks raindrops
No wobble in tall grass.
Rendering error when reflection mapping is off
Rendering error when normal maps are turned off
There is a slight offset error in normal.
Rendering error occurs when normals point vertically
Block border rendering error
Collision box not rendering
Fishing lines do not render.
Redstone wire glow effect not rendering
Blazing Man texture is too bright
Black bands appear in the reflection of a perfectly smooth surface.
The level of water mist in the translucent block is abnormal.
The sun and moon lighting replacement times are incorrect.
4. Deleted Things
Aurora removal
Remove cloud shadows
Removed plant collision effect
Removed some volume cloud settings.
Removed some depth settings
Remove the SSAO switch